Rainbow Electronics MAX8707 - Manual (Page 34)

MAX8707
Multiphase, Fixed-Frequency Controller for
AMD Hammer CPU Core Power Supplies
34 ______________________________________________________________________________________
OUTPUT
CPU
INPUT
KELVIN SENSE VIAS UNDER
THE SENSE RESISTOR
(REFER TO THE EVALUATION KIT)
C
OUT
C
IN
C
IN
C
IN
C
IN
C
IN
C
IN
C
OUT
C
OUT
C
OUT
C
OUT
C
OUT
R SENSE
CONNECT GND AND PGND TO THE
CONTROLLER AT ONE POINT
ONLY AS SHOWN
CONNECT THE
EXPOSED PAD TO
ANALOG GND
PLACE CONTROLLER ON
BACKSIDE WHEN POSSIBLE,
USING THE GROUND PLANE
TO SHIELD THE IC FROM EMI
INDUCTOR INDUCTOR INDUCTOR INDUCTOR
POWER GROUND POWER GROUND
POWER GROUND
(INNER LAYER)
ANALOG GROUND
(INNER LAYER)
Figure 9. PC Board Layout Example